Apparatus for treating type.



L. M. SMITH.

APPARATUS FOR TREATING TYPE.

APPLICATION TILED MAR. 18, 1909.

Patented Dec. 19, 1911.

3 SHEETBSHEET 1.

P. P a v a. v M. E

.lawfenc L. M. SMITH.

APPARATUS FOR TREATING TYPE.

APPLICATION FILED MAB..1B, 1909.

1,012,285. Patented Dec. 19, 1911.

3 SHEETSSHEET 2.

L. M. SMITH.

APPARATUS FOR TREATING TYPE.

APPLICATION FILED MAR. 18, 1909.

Patented Dec. 19, 1911.

3 SHEETS-SHEET 3.

Lawrence/f $7721.

UNITED STATES, PATENT OFFICE.

LAWRENCE M. SMITH, OF CHICAGO, ILLINOIS.

APPARATUS FOR TREATING TYPE.

To all whom it may concern:

Be it known that I, LAWRENCE M. SMITH, a citizen of the United States, and a residentof the city of Chicago, in the county of Cook and State of Illinois, have invented certain new anduseful Improvements in Apparatus for Treating Type; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

The type cast from monotype machines is used while the faces are so exceedingly bright as soon to injure or endanger the vision of the compositors, and the same is true to a certain extent with most new type.

The object of this invention is to afford an apparatus for treating type of the same class set forth in my prior application filed April 22, 1908, Ser. No. 428,675, and adapted to enable large quantities of type to be rapidly treated without danger of injuring the type or endangering the health of the operators.

-A further object of the invention is to afford a construction by means of which type or other metallic reflecting bodies may be quickly treated by a gas or vapor to corrode or discolor the same sufficiently as to diffuse and absorb the light falling upon its faces instead of reflecting the same, and also to afford a construction in which the operation may be rapidly effected with practically no expenditure for power.

The invention consists in the matters hereinafter described and more fully pointed out and defined in the appended claims.

In the drawings: Figure 1 is a somewhat diagrammatic view in central longitudinal section of one type of device embodying my invention. Fig. 2 is a view in side elevation showing a slightly modified construction connected directly with the monotype machine. Fig. 3 is a central vertical section of a device embodied in my invention in which the type is caused to pass downwardly from the monotype machine through a retarding chute during its passage through which it is subjected continuously to the agent whereby its surface is affected. Fig. 4 is a section taken at a right angle with Fig. 3. Fig. 5 is a detail view of the Weighted detent for controlling the dis- Specification of Letters Patent.

Application filed March 18, 1909.

Patented Dec. 19, 1911.

Serial No. 484,143.

charge from the machine. Fig. 6 is an enlarged section taken on line 6--6 of Fig. 4t.

As shown in the drawings: Referring first to Fig. l, A, indicates a compartment or easing containing a drawer (1, preferably lead lined for the treating of the galley type. Connected at one end of said casing A, is a pipe a, which leads upwardly and connects through a washing bottle 13, with a generator tlask or retort B, adapted to contain a hydro-chloric acid or any other agent or material adapted to evolve (either with or without the application of heat) a vapor or fumes adapted to attack and slightly etch or corrode the surface of the type. Beneath the retort or flask is a source of heat b shown as a gas burner. Leading upwardly from the opposite end of the galley case A, is an exhaust pipe 0, which connects through a suitable valve 0, with a downwardly directed pipe 0 which connects by means of a flexible rubber pipe c, with a pipe 0, providedwith a bell month which fits over and extends into a water receptacle, cask, or pail C, and whereby the gas evolved from the retort after passing through the galley case may be taken up in suspension or absorbed by the water in said receptacle. Also communicating in the valve 0', is a pipe (Z, which opens into the top of the receptacle D, with a cover (Z, adapted to be hermetically sealed in place, if desired. W'ithin said receptacle is supported a basket D, of wire not into which type of any kind may be dumped after coming from the monotype machine, and in which the same is subjected to the fumes or vapor from the generator or retort by means of a pipe (Z which connects through a suitable valve rl with the pipe at, and which opens into the bottom of the treating receptacle D.

It often happens that it is desirable to take the type immediately from the monotype machine to avoid handling. For this purpose, the monotype machine (indicated as a whole by E) has connected therewith a table, bed or extension 6, which extends to, and partly into, an aperture 0, in the top of a retarding chute 1*), through which the type must fall during the treating operation. As shown, said retarding chute or pipe is rectangular in cross section, though, obviously, this is not necessary or essential, as it may be made in any desired form, and in any desired length. Lining said retarding chuteis an investment of pure lead 6 glass, or any suitable material not capable of being affected by the fumes-employed, and rigidly secured on opposite side walls of the retarder are deflecting plates e*e which are arranged to break joints and each of which extends somewhat past the middle of the retarder and is of a width to fill the same from side to side. Said retarder is secured or supported upon a receptacle or tray F, also lined with refractory material f, as before described, and supported within said tray is a reticulated pan or false bottom f, upon which the treated type fall at the conclusion of the treatment. As shown, a r0- tatable valve F, is provided at the bottom of the retarding chute, and is provided with a plurality of tongues or arms which fit closely in the chute below the last deflector 6 -6 and which is held normally from rotation by means of a cam f on the end of the shaft for said valve, and on which is supported a weighted detent P, which as shown acts wholly by gravity. Connected in the retarder E, near the uppermost of said flights 0r inclined members is a pipe f which corresponds with the pipe a, before described, and is provided with a suitable valve and connects in the washing bottle B, before described. Also connected in said retarder but near the bottom thereof and slightly above the valve before described, is a pipe f corresponding substantially with the exhaust pipe 0, and leading to a water collecting apparatus 0, such as before described.

To enable the tray F, to be opened at practically any time without permitting the escape of the gas or other vapor into the room, I have provided a pressure pipe G, for pure air, which opens into the bottom of said tray below the reticulated or false floor, and is connected also with any suitable source of pneumatic pressure whereby a supply of air under a slight pressure may be delivered at all times into the tray. Extending from the top thereof, as indicated by g, is the exhaust or eduction pipe, which may lead to a collecting bottle, flask or device C, such as shown in Figs. 1 and 2, or, if sufficient quantities of atmospheric air be mixed therewith, may be permitted to escape through the apertures.

The operation is as follows: The type passes from the monotype machine directly through the valve opening in the top of the retarding chute and thence falling upon the first inclined plate, is deflected to the opposite side of the chute upon the plate 6 thence sliding and falling, the type pass backward and forward in said chute until a sufficient quantity have collected on one of the paddles of the valve F, to cause the same to rotate one space against the resistance of the gravity acting detent f. The

tion to catch a succeeding load. All the" time that this operation progresses, the flow of the gas through the chute proper is through the pipe f and outwardly through the pipe f. This, of course, is facilitated for the reason that practically any of the gases that are capable of being used for the purpose are heavier than air, and the air is forced out by displacement, and the air. with gas mixed therewith passes through the pipe f, to the water bottle or flask C, where the gas or vapor (if vapor be used) is absorbed by the water. Of course, owing to the inward pressure in the pipe G, in the bottom of the tray all the type in the tray are at all times bathed with the inflowing air and as a result pressure in excess of normal is maintained at all times in the pipe G, and any of the vapor or gas that would otherwise remain in said receptacle or tray is forced out through the vent 9. While this is continuous, however, and the machine is in operation, there is very slight tendency for the gas or vapor in the retarding chute so escaping, this for the reason that pressure maintained is but slight and except at the moment when the valve f is dumping its load the retarding chute is at all times closed from below. Of course, the operation is the same if or if not the galley tray a, and the treating receptacle D, be employed either as auxiliary devices or in connection with the retarding chute. Frequently where several kinds of type are being used all three of said devices are employed and the gas passes continuously through each of the same, in each instance performing its operation of etching, corroding, or darkening the surfaces of the type treated thereby.

Of course I am aware that other mecha nisms may be used in connection herewith. I, however, do not purpose limiting this application for patent otherwise than necessitated by the prior art, but purpose claim.- ing broadly all devices adapted to operate continuously in connection with a' monotype machine or the like and in which dry vapor or gas, or substantially dry vapor or gas is employed for the purpose.

I claim as my invention:

1. In a device of the class described the combination with a source of vapor, of a retarding chute adapted to be connected and to receive the discharge from a monotype machine, and communicating with said source or supply of vapor, means for retarding the passage of the type through said chute, a valve at the lower end of the chute, a tray into which said chute discharges through said valve, and pipes connected in said tray and adapted for the removal of any of said vapor therefrom.

2. In a type treating machine the combination with a source of gas or vapor of a retarding chute communicating therewith, a receptacle at the base of said chute and an inlet and an exhaust pipe opening into the receptacle.

3. In a type treating machine a chute for the type, means for retarding the passage of the type therethrough, a source of sup ply for a corrosive vapor communicating with said chute, an exhaust 'pipe leading from the chute at its bottom, a vessel adapted to contain water into which said exhaust pipe extends and means preventing the escape of the gas into the atmosphere when the type are being removed from the machine.

4. In a device of the class. described a stationary device for agitating type by the gravity of the type, a receptacle into which the type are discharged, means for admitting a corrosive gas into the stationary de vice, an exhaust pipe opening from the receptacle for the fumes and means delivering pressure into the receptacle to force the fumes therefrom.

5. In a machine of the class described a retarding chute, a lining of refractory material therein, downwardly and inwardly inclined ledges in said chute adapted to direct the material falling therethrough from side to side thereof, a valve at the bottom of the chute adapted to operate by the material falling thereon, a collecting receptacle below the valve, means for supplying a gas or vapor to the chute, means supplying pressure through said receptacle to deliver any of said vapor therefrom, an ex haust pipe and a collecting vessel containing Water into which the exhaust is discharged.

(3. In a machine for treating type comprising a retarding chute, downwardly and inwardly inclined ledges in said chute adapted to direct the material falling therethrough from side to side thereof, a valve at the bottom of the chute adapted to operate by the material falling thereon, a collecting receptacle below the valve, means for supplying gas or vapor into the chute, means for receiving the gas or vapor from the chute after acting on the material and means for condensing or concentrating the vapor.

7. In a device of the class described means for receiving type, means for supplying a gas thereto to discolor the type, a receptacle for the treated type and means for exhausting the fumes from the receptacle.

8. In a device of the class described means adapted to permit type to pass therethrough by gravity of the type, means for supplying a fluld to act on the type to discolor the same while the type are passing through said means, means for retarding and agitating the type during their passage through said means, a receptacle for receiving the type, a removable drawer therein and means for exhausting the gases from the receptacle prior to opening the drawer.

9. In a type treating machine means for receiving and agitating the type, means for generating a gas or vapor to act on the type, means affording communication between the generating means and receiving means and means for intermittently discharging the treated type from said receiving and agitating means.

10. A machine for treating type comprising a receptacle, means therein for agitating the type, a retort for generating a gas or vapor, means for supplying said gas or vapor into the receptacle, means for receiving the gas or vapor from the receptacle after acting on the type and means for condensing or concentrating the vapor.

11. A machine for treating type comprising a receptacle, means therein for agitating the type, a retort for generating a gas or vapor, means for supplying said gas or vapor into the receptacle, a removable receptacle for receiving the type from the aforesaid receptacle and means for supplying air under pressure into said removable receptacle.

12. In a device of the class described a vertical receptacle, agitating blades therein, a rotatable discharge member normally closing the bottom of the receptacle, and a removable receptacle below the discharge member provided with an apertured bottom.

13. In a device of the class described a vertical receptacle, agitating blades therein, a rotatable discharge member normally closing the bottom of the receptacle, a removable receptacle below the discharge member provided with an apertured bottom, mechanism for generating and supplying a gas to the vertical receptacle and nreans for expelling the fumes from the removable receptacle prior to removal thereof.

In testimony whereof I have hereunto subscribed my name in the presence of two subscribing witnesses.

LAWVRENCE M. SMITH.

Witnesses:

C. W. IIILL, K. E. HANNAH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, I). C. 

